Fire Strike

Origin Feat

Once per turn, when you hit a target with a melee weapon attack or a ranged weapon attack using a thrown weapon, you can imbue the attack with the power of flame to inflict an extra 1d10 fire damage to the target.

You can use this feat a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

this feat can replace Strike of the Giants (Fire Strike)  as a requirement for anything else that requires that feat (typically for Ember of the Fire Giant)